Gun.



Na. 808,113. PATENTED DBC. 26, 1905.

C. A. T. SJGREN.

GUN.

APPLIOATION FILED JUNI: 27, 190s.

- l'o aZZ whom, it mag/concerns i .sms-EN.: oF

-No. 808,11sl` i Specification of iett ers atent. f `r -"ratented nec. 2e, 1 905'.

Beit known that LCARL AXEL Tnnonorc SJGREN, a :subject `of the King of'- Sweden and Norway, and aire sident/ of Stockholr`n,`v Sweden, have invented a new and useful Im-l provement in Guns, of whichthe following is a specification, reference beinghad' to the ac- V companying drawings, forming a part hereof.

` ducing the work to beperformed by the same This invention relates toimprovements in guns, andv more especially to -that class of guns which are described in my United States etters Patent.No. 739,732, dated September22,1903. f l

The object of the present invention is to reduce the dimensionsv ofthe Weights byrein their backward movements.

,. The invention consists, briefly, in the pro- V Avision of suitable meansfor compressing in the forward motionff the weight or weights thespring or springs actuating the iiringin, whereby the s ring or s rings adapte to throw the weight'or weig ts backward may be made much weaker than before.

In the accompanying drawings I have shown a way of carrying out the invention. f

Figure 1 .shows a longitudinal section of a part of a gun embodyingmy invention. Fig.

2 shows a plan view, artly in horizontal lsection, of the same; an Fig. 3 shows likewise av plan view, rartly in horizontal section, with the breechlock in open position. V The weight 1 is' movable on the breech- 'bloc'k 2 .in the same manner as described in my'above mentioned LettersPatent No.

- 739,232. In a boring 3 in thesad wei ht are provided two (or more) springs 4.an 5, of

r which the one,.' (or more,) 4, 1s adapted. to throw the weight backward after the recoil lhas ceased,wh1le the other, (or`others,) 5, constltutes the spring-.actuating the iiring-pin.

The'said spring 4 bears at the one end again st the bottom of the said boring 3. and at 'the other end againstl a shoulder 6 on the -breechblock, while the spring 5 forlactuating the firing-pin is'arranged betweenthe said bot tom and the head 7 ofthe iiring-pinS. The

-" i said wei ht v1 engages, by means 0f a Pin' 10 referab y actuate by a spring 9, 'with two orizontally-turnable angle-levers `1'1, whichare mounted onthe-breech-block 2*. and the l fore ends of which are formed as hooks12,

' adapted to' e the breechlock is in its closed position, asshown in Fig. 2. The rear ends of the said dgage corresponding hooks 13 on apart-15, ri i yconnected tothe vbarrel when 5 5 I i angle-levers are close. to each otherin the said position of thebreech-block'and can never be turned so far from eachother as to let through the said lpi'n-10,`inasr nuch as the same when they are turned by the pin in the backward movement'of the weight willy strike inclined movement of the saidjan' le -'levers. weight 1 will thus in its -bac ward movement surfacesl-of thebreech-block, limiting Itle rst disengage the angle-levers-from the hooks 1-3 and thereupon by means of the saidangleleversthrow the breech block backward.

To the rear 6nd 0f the breech-block is ivotally fixed a sea'r 17, whichfis'actuate -byfa spring v1 8 and 4when'the wei/ht has accomp ished its forward motion wil engage a hookshaped recess- 19 in the rlng-pin in order to keep vthe spring 'inconpressed condition.

' For the purpose of r'in theV gun the said se'ar 17 may engaged rom the firing-pin by means. of a'hook .i2-1pivotally connected 'to .the trigger 20, `whereby the firin -pin in the usual manner is thrown'forwar by the The spring 22, which in the form shown 1n the drawings is adapted to bring the breechblock back into closed position, is arranged and down and be. actuated by a spring 26, which tends' to vkeep the said blockm its u '.permost position'. vThe hole in which t e lock 24 is arranged is wider atits lower end, so that the said block when ithas been fully forced down into the-said hole ma be rocked somewhat backward and broug t into en- 'gagement with shoulders 27, formed 1n the sides of the guide 25'and adapted to keep the said block 24 in itslowest position.

The arra ements descrlbed above work in the following manner: When the different parts are in the ositionsshown in Fig. 1, in which the gunglsreadyf firmg, and the trig er is o erated mt .hoo 21wi bringthesear 17 out of engagement with the firin -pin 8, which will then .be thrown forward an cause ring in the usual manner. The gun now recoils and the welght 1 moves forward, whereby the sprmgs 4 and 5 will be compressed. 4 Since the welght 1 1n the forward motion ofthe firing-pin. has a IOO usual manner,tlie

IlO

vcertain tendency tov move backward,it is I suitable to have the said sear 17 when it is drawn down by the hook 21 enter a recess 28 in the bottom of the guide 25, so as to prevent a premature backward motion of the weight. In order that the scar 17 in the forward motion of the weight may be able to engage the hook-shaped recess 19 of the firing-pin 8, it is necessary to disengage the said sear 17 from the hook 21. VFor this purpose the sear 17 is extended downward and bears against the said hook 21 by a plan sur face of comparatively great extension in vertical direction, by means of which the hook 21 inthe forward movement of the weight will rotate the last-mentioned hook, so as to release the same, whereupon the scar 17 by the action of the spring 18 will engage the hook-shaped recess 19 of the iiring-pin.

When the recoil has ceased, the spring 4 will throw the weight backward, whereby the pin 10 will first disengage the angle-levers 11 from the hooks 13 and thereupon bring the breech-block 2 backward until the weight strikes the block 24. The withdrawal of the emptied cartridge and the introduction of a new cartridge into the barrel may be performed in any well-known manner and form no art of the present invention. As soon as t ie weight 1 has struck the block 24 it will be brought back into the position shown in Figs. 1 and 2 by means of the spring 22, whereby also the breech-block 2 will be returned to its initial closed position and the hooks 12 of the angle-levers 11 will again be thrown into engagement with the hooks 1,3 by'means of the spring 4, the fore end of which for this purpose bears against the'rear ends of the said angle-levers`12, as clearly shown in Fig. 1. The gun is thereupon ready for new iring. It is only necessary to release the trigger a moment, so as to give the hook 21 o portunit to rengage the sear 17.

O viously do not limit myself to the eX- act form described above and illustrated in the accompanying drawings, inasmuch as the spring or springs actuating the liring-pin lmay be arranged in any other manner and any other 'means for compressing the same by the weight in its forward movement may be used, as easily understood by those skilled in the art.

Having now described my invention and in what manner the same may be performed, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination with a gun, of a longitudinally-reciprocating breech-block, a movable weight on the said breech-block adapted to move forward on account of its inertia when the gun recoils, a spring between the said weight and the breech-block adapted to be compressed when the former moves forward and to throw the said weight'backward when the recoil ceases, a firing-pin, a firingpin spring adapted to be compressed by the said weight in its forward movement, means for locking the breech-block in closed position, and means for unlocking the breechplocll, substantially as and for the purpose set ort 2. In a un the combination of a longitudinally-reci rocating breech-block, a weight mounted t iereon capable of independent longitudinal movement and adapted to move forward by its inertia and the recoil of the gun when fired, a reaction-spring between said weight and the breech-block, a frin -pin and iring-pin spring within the breech-b ook,

Asaid spring also having bearing against the,

weight, whereby when the weight moves forward the spring will be compressed, a sear l for the firing-pin, hooks mounted on the breech-block to engage coacting hooks or shoulders on the barrel, and a projection on the weight to engage said hooks on the breechblock and release the same when the weight moves back under the influence of its reaction-spring. v

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CARL AXEL THEODOR SJGREN.

Witnesses EVALD DELMAR, KARL RUNosKoG. 

